Suggested Reaction 1.1.3.-

Left

3,5,7,11,13,15-Heptaoxo-9-hydroxy-hexadecanoyl-[acp]
+O2

Right

3,5,7,9,11,13,15-Heptaoxo-hexadecanoyl-[acp]
+H2O2

[BiSSCat | GREP ]